Final answer:
Lathika can make her RRSP contribution for the current year's tax return up to February 29th of this year if it is a leap year.
Step-by-step explanation:
The question pertains to the last date Lathika can make a contribution to her Registered Retirement Savings Plan (RRSP) such that she can claim the full amount as an RRSP deduction on her income tax return for the current year. The Canada Revenue Agency allows RRSP contributions for a specific tax year to be made up to 60 days into the following year. Therefore, if this year is a leap year, the last date she can contribute to her RRSP for the current year's tax purposes would be February 29th of this year, as this is the 60th day of the year including February 29 in a leap year.